This commit adds a new time property for Battery charger (BC1.2) type
detection completion process (based on BCv1.2 detection spec) when
typec port connects in a potential sink role. BC1.2 detection is used
by some Type C port controllers implementations (such as
"maxim,max33359") to detect the type of charger port.
Signed-off-by: Amit Sunil Dhamne <amitsd@xxxxxxxxxx>
---
.../devicetree/bindings/connector/usb-connector.yaml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 21a0c58c65cd..67700440e23b 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -283,6 +283,16 @@ properties:
maximum: 200
default: 200
+ sink-bc12-completion-time-ms:
+ description: Represents the max time in ms that a port in sink role takes
+ to complete Battery Charger (BC1.2) Detection. BC1.2 detection is a
+ hardware mechanism, which in some TCPC implementations, can run in
+ parallel once the Type-C connection state machine reaches the "potential
+ connect as sink" state. In TCPCs where this causes delays to respond to
+ the incoming PD messages, sink-bc12-completion-time-ms is used to delay
+ PD negotiation till BC1.2 detection completes.
+ default: 0
+
dependencies:
sink-vdos-v1: [ sink-vdos ]
sink-vdos: [ sink-vdos-v1 ]
@@ -426,6 +436,7 @@ examples:
sink-wait-cap-time-ms = <465>;
ps-source-off-time-ms = <835>;
cc-debounce-time-ms = <101>;
+ sink-bc12-completion-time-ms = <500>;
};
};
--
2.47.0.199.ga7371fff76-goog
